6 results about "Hepatic veins" patented technology

The present application relates to the technical field of medicine, and discloses application of gastrodin in preparation of medicine for preventing and treating radioactive liver injury, wherein the radioactive liver injury is liver injury caused by ionizing radiation exposure. It is found that the gastrodin can effectively intervene in specific mechanism of the radioactive liver injury, significantly reduce the mortality of the radioactive liver injury mice, reverse the hepatic veno-occlusive disease and the core pathological features of liver fibrosis of the radioactive liver injury, and more specifically treat the radioactive liver injury. On the other hand, the gastrodin can be used before radiation exposure to prevent serious radioactive liver injury after radiation exposure.

The invention relates to the technical field of medicines, and discloses application of gastrodin in preparation of a medicine for preventing and treating radioactive liver injury, and the radioactive liver injury is liver injury caused by ionizing radiation exposure. The gastrodin is found to be capable of effectively intervening a specific mechanism of the radiation-induced liver injury, so that the death rate of mice with the radiation-induced liver injury is remarkably reduced, meanwhile, the core pathological characteristics of hepatic vein occlusion and hepatic fibrosis of the radiation-induced liver injury are reversed, and the radiation-induced liver injury is treated in a more targeted manner. On the other hand, gastrodin is used before radiation exposure, so that serious radioactive liver injury after radiation exposure can be prevented.

The invention provides an automatic liver segmentation modeling method and system based on a hybrid neural network, and relates to the technical field of medical imagines.The method comprises the steps that a collected original liver image is preprocessed, and a three-dimensional liver image is obtained; wherein the three-dimensional liver image comprises liver parenchyma, portal vein and liver vein; inputting the three-dimensional liver image into a trained segmentation model to obtain a liver parenchyma mask, a portal vein mask and a liver vein mask; based on the liver parenchyma mask, the portal vein mask and the liver vein mask, dividing the liver parenchyma into a plurality of drainage basin partitions; determining a standard liver segment corresponding to each drainage basin partition based on a preset liver segment division rule; and based on the standard liver segment corresponding to the drainage basin subarea, performing elastic deformation on the drainage basin subarea to obtain a deformed drainage basin subarea. According to the invention, individual vascular variation characteristics of patients can be reflected.

The invention relates to the technical field of fluid mechanics, and provides a liver sinus blood flow numerical simulation method and device, electronic equipment and a computer program product. The method comprises the following steps: acquiring a three-dimensional geometric model of a liver blood sinus area of a patient; setting blood flow in the portal vein and the hepatic vein as incompressible Newtonian fluid, and constructing a three-dimensional transient Darcy law equation for representing hepatic sinus blood flow parameters in the three-dimensional geometric model; and solving the three-dimensional transient Darcy law equation to obtain a blood flow numerical simulation result of the liver blood sinus area. According to the method, a three-dimensional transient Darcy law equation is adopted as a mathematical model of hepatic sinus blood flow, on the basis of the characteristics of the three-dimensional transient Darcy law equation, the seepage flow characteristics of blood in a hepatic sinus porous medium structure can be well described, and the blood flow distribution rule in hepatic sinus is accurately reflected; therefore, an accurate liver sinus blood flow numerical simulation result is obtained.

This application provides an automated liver segmentation modeling method and system based on a hybrid neural network, relating to the field of medical imaging technology. The method includes: preprocessing acquired raw liver images to obtain a three-dimensional liver image; wherein the three-dimensional liver image includes liver parenchyma, portal vein, and hepatic vein; inputting the three-dimensional liver image into a trained segmentation model to obtain liver parenchyma masks, portal vein masks, and hepatic vein masks; dividing the liver parenchyma into multiple watershed partitions based on the liver parenchyma masks, portal vein masks, and hepatic vein masks; determining the standard liver segment corresponding to each watershed partition based on preset liver segmentation rules; and elastically deforming the watershed partitions based on the standard liver segments corresponding to the watershed partitions to obtain deformed watershed partitions. This application can reflect the individualized vascular variation characteristics of patients.